Canceled my subscription

I used to have a subscription but then the app stopped working I could not get any answer to my questions. No matter what I asked even something simple like 2+2 it just told me it couldnt find an answer. No way Im going to keep paying for that. Ever since the last big update the app has been terrible.

Qwerqqqwz about Mathway: Math Problem Solver, v3.0.10